Mark Daly, Ramnik Xavier and colleagues report that a 20-kb deletion polymorphism upstream of IRGM is associated with altered IRGM expression and Crohn's disease. They also show that manipulation of IRGM levels in cells modulated the efficiency of autophagic responses to internalized bacteria, suggesting a mechanism by which the deletion variant might influence disease risk.
- Steven A McCarroll
- Alan Huett
- Ramnik J Xavier